Galactic Civilizations® II: Ultimate Edition vs Sins of a Solar Empire®: Rebellion
Which one is worth buying now, with today's prices and each game's recommendation.
Sins of a Solar Empire®: Rebellion wins 10 of 15 head-to-head metrics. Galactic Civilizations® II: Ultimate Edition is $3.08 cheaper.
Metric by metric
The winner of each row gets a ✓. No row weighs more than another; the recommendation is calculated separately.
| Metric | Galactic Civilizations® II: Ultimate Edition | Sins of a Solar Empire®: Rebellion |
|---|---|---|
| GameValio scoreRecommendation: Maybe × Worth It | 65 | 78 |
| Quality | 84 | 90 |
| Value | 75 | 91 |
| Popularity | 24 | 33 |
| Current Best Price (USD) | $0.54 | $3.62 |
| Steam Review Score | 80.4% positive | 93.7% positive |
| Average Concurrent Players (14 days) | 17 | 218 |
Where to buy
The 3 cheapest stores for each game
Galactic Civilizations® II: Ultimate Edition
GAMIVO Cheapest Key marketplace$0.54−95%Buy 
Kinguin Key marketplace$0.67−93%Buy 
Green Man Gaming Authorized reseller$4.00−60%Buy Sins of a Solar Empire®: Rebellion
GAMIVO Cheapest Key marketplace$3.62−82%Buy Green Man Gaming Authorized reseller$4.80−76%Buy 
Loaded Authorized reseller$5.09−75%Buy Side by side over time
Galactic Civilizations® II: Ultimate EditionSins of a Solar Empire®: Rebellion
Details and requirements
| Item | Galactic Civilizations® II: Ultimate Edition | Sins of a Solar Empire®: Rebellion |
|---|---|---|
| Release date | December 2, 2011 | June 12, 2012 |
| Developers | Stardock Entertainment | Ironclad Games Corporation, Stardock Entertainment |
| Publishers | Stardock Entertainment | Stardock Entertainment |
| Platforms | Windows | Windows |
| Processor (minimum) | — | Intel Core i5/i7 Processor or Equivalent |
| Memory (minimum) | — | 4 GB Available System Memory |
| Graphics (minimum) | — | 1 GB Video Card w/Pixel Shader 3.0 Support (Radeon X3000 Series / GeForce 8000* Series or Better) |
| Other Requirements (minimum) | — | Broadband Internet connection. |
Frequently asked questions
Which is better: Galactic Civilizations® II: Ultimate Edition or Sins of a Solar Empire®: Rebellion?
Sins of a Solar Empire®: Rebellion won the comparison against Galactic Civilizations® II: Ultimate Edition based on the head-to-head metric breakdown. Check the metrics table above for a full side-by-side analysis.
How is the comparison calculated?
The comparison winner is determined objectively by counting which game wins more individual metrics in the head-to-head table. No weighting is applied. The GameValio Recommendation shown separately is our own suggestion for each game, based on a weighted score that combines quality (reviews), popularity (player counts), and affordability (price vs value) into a score out of 100. These are two different things: the comparison is objective, the recommendation is GameValio's opinion.
Is Galactic Civilizations® II: Ultimate Edition worth buying over Sins of a Solar Empire®: Rebellion?
Based on the metrics, Sins of a Solar Empire®: Rebellion won the direct comparison. However, also check the GameValio Recommendation for each game and the price comparison table to make the most informed purchase decision.
Which game has better player reviews?
Review score trends and volume over time are shown in the charts section above. The game with consistently higher positive ratios has stronger community reception.
Which game offers better value for money?
The affordability score and price comparison table above highlight the best deals. Sins of a Solar Empire®: Rebellion currently scores better on value relative to its quality and price.
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Analysis updated: Oct 24, 2026, 12:17 PM UTC